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N-(4-Aminobutyl)-N-ethylisoluminol/CoFe2O4/graphene hybrids with unique chemiluminescence and magnetism

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Abstract

In this study, N-(4-Aminobutyl)-N-ethylisoluminol (ABEI) and CoFe2O4 nanoparticle functionalized graphene hybrids (ABEI/CoFe2O4/GNs) were synthesized for the first time via a hydrothermal reaction and π–π stacking using ABEI as a chemiluminescence (CL) reagent and CoFe2O4 magnetic nanoparticles (MNPs) as a catalyst and magnetic carrier. The as-prepared ABEI/CoFe2O4/GNs demonstrated a good magnetic separation performance, which could be used as a separation tool for the purification of ABEI/CoFe2O4/GNs. Moreover, the as-prepared ABEI/CoFe2O4/GNs exhibited outstanding CL activity and good stability when reacted with H2O2 in alkaline solution; the CL intensity was about 80 times higher than that of ABEI/GNs. The ABEI/CoFe2O4/GNs also exhibited good electrochemiluminescence (ECL) activity in alkaline and near-neutral conditions without any additional co-reactant. The excellent CL/ECL efficiency of the ABEI/CoFe2O4/GNs was attributed to the CoFe2O4 MNPs immobilized on the surface of graphene, which catalyzed the decomposition of H2O2 to generate O2˙ and HO˙, accelerating the CL/ECL reaction. Owing to their good magnetic properties, unique CL/ECL performance and good stability, as well as easy assembly and biocompatibility of graphene, the as-prepared ABEI/CoFe2O4/GNs could be used as an ideal platform for constructing biosensors and bioassays.

Graphical abstract: N-(4-Aminobutyl)-N-ethylisoluminol/CoFe2O4/graphene hybrids with unique chemiluminescence and magnetism

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Publication details

The article was received on 21 May 2017, accepted on 30 Jun 2017 and first published on 03 Jul 2017


Article type: Paper
DOI: 10.1039/C7TC02230A
Citation: J. Mater. Chem. C, 2017, Advance Article
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    N-(4-Aminobutyl)-N-ethylisoluminol/CoFe2O4/graphene hybrids with unique chemiluminescence and magnetism

    X. Liu, Q. Li, J. Shu and H. Cui, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC02230A

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